The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2013
Filed:
Jun. 09, 2010
Susumu Yamamoto, Makinohara, JP;
Satoshi Ishikawa, Makinohara, JP;
Susumu Yamamoto, Makinohara, JP;
Satoshi Ishikawa, Makinohara, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
An insulation resistance detecting apparatus is provided to detect an insulation resistance of a load circuit. The insulation resistance detecting apparatus includes a coupling capacitor of which a first end is connected to the load circuit; a periodic waveform output section which is connected to a second end of the coupling capacitor, and outputs a periodic waveform to the second end; a waveform shaping section which extracts and amplifies a part of the periodic waveform including a peak point; and an arithmetic operation section which determines the insulation resistance of the load circuit on the basis of a first wave height as a wave height value of a waveform outputted from the waveform shaping section and a second wave height value as a wave height value of the periodic waveform.